Lake Colorado City Dam

Lake Colorado City Dam is an earth dam located in Mitchell County, Texas, built in 1949. It carries a High hazard potential classification and has a fair condition assessment.

About Lake Colorado City Dam

The primary purpose of Lake Colorado City Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Luminant Power Company Llc (private). It impounds the Morgan Creek.

The dam stands 85 feet tall and stretches 4,500 feet across, creates a reservoir covering 1,610 acres, has a maximum storage capacity of 93,132 acre-feet, and collects water from a drainage area of 337 square miles. Completed in 1949, the structure is well-established, with more than 75 years of service.

This dam carries a high hazard potential classification, which means that a failure or uncontrolled release of water would likely cause loss of human life. This classification reflects the consequences of failure, not the likelihood — it indicates that people live or work in the area downstream. Its condition is rated fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. An emergency action plan is in place for this dam. The most recent inspection on record was 07/26/2023.

At 85 feet, this dam is taller than 97% of all dams in the United States.

Living Downstream

If you live or work downstream of this dam, consider taking these steps: learn your local evacuation routes, check whether your county emergency management office has a dam failure inundation map, and sign up for local emergency alerts. The Texas dam safety program can provide more specific information about emergency planning for this structure.

Search for dams near your address to see all dams in your area with hazard classifications and safety data.

High HazardFair ConditionEmergency Action Plan: Yes

Location

StateTexas
CountyMitchell
River/StreamMorgan Creek
Coordinates32.31875, -100.91884

Physical Characteristics

Dam TypeEarth
NID Height85 ft
Dam Height85 ft
Dam Length4,500 ft
Year Completed1949 (77 years old)

Storage & Hydraulics

NID Storage93,132 acre-ft
Max Storage93,132 acre-ft
Normal Storage31,484 acre-ft
Surface Area1,610 acres
Drainage Area337 sq mi
Max Discharge150,001 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeRecreation
OwnerLUMINANT POWER COMPANY LLC
Owner TypePrivate
Hazard ClassificationHigh
Condition AssessmentFair
Last Inspection07/26/2023
Emergency Action PlanYes

Identifiers

NID IDTX01693
Federal IDTX01693
More InfoState Dam Safety Program

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